Question

$4.88g$ of $KCl{O}_3$ when heated produced $1.92g$ of $O_2$ and $2.96g$ of $KCl$. Which of the following statements regarding the experiment is correct?

• A. The result illustrates the law of conservation of mass
• B. The result illustrates the law of multiple proportions
• C. The result illustrates the law of constant propositions
• D. None of the above laws is followed

Answer 1

Answer: (A)

$\underset{4.88g}{2KCl{O}_3}⟶\underset{2.96g}{2KCl}+\underset{1.92g}{3O_2}$
Since, mass of the products $(2.96+1.92)$ is equal to the mass of the reactant, this illustrates the law of conservation of mass.